/*
 * SonarQube
 * Copyright (C) 2009-2023 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.server.platform.db;

import java.io.IOException;
import java.net.InetAddress;
import java.sql.DriverManager;
import org.h2.Driver;
import org.junit.After;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.DisableOnDebug;
import org.junit.rules.TemporaryFolder;
import org.junit.rules.TestRule;
import org.junit.rules.Timeout;
import org.sonar.api.config.internal.MapSettings;
import org.sonar.api.utils.System2;
import org.sonar.api.testfixtures.log.LogTester;
import org.sonar.process.NetworkUtilsImpl;

import static junit.framework.Assert.fail;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.sonar.process.ProcessProperties.Property.JDBC_EMBEDDED_PORT;
import static org.sonar.process.ProcessProperties.Property.JDBC_PASSWORD;
import static org.sonar.process.ProcessProperties.Property.JDBC_URL;
import static org.sonar.process.ProcessProperties.Property.JDBC_USERNAME;
import static org.sonar.process.ProcessProperties.Property.PATH_DATA;

public class EmbeddedDatabaseTest {

  private static final String LOOPBACK_ADDRESS = InetAddress.getLoopbackAddress().getHostAddress();

  @Rule
  public LogTester logTester = new LogTester();
  @Rule
  public TemporaryFolder temporaryFolder = new TemporaryFolder();
  @Rule
  public TestRule safeguardTimeout = new DisableOnDebug(Timeout.seconds(60));

  private MapSettings settings = new MapSettings();
  private System2 system2 = mock(System2.class);
  private EmbeddedDatabase underTest = new EmbeddedDatabase(settings.asConfig(), system2);

  @After
  public void tearDown() {
    if (underTest != null) {
      underTest.stop();
    }
  }

  @Test
  public void start_fails_with_IAE_if_property_Data_Path_is_not_set() {
    assertThatThrownBy(() -> underTest.start())
      .isInstanceOf(IllegalArgumentException.class)
      .hasMessage("Missing property " + PATH_DATA.getKey());
  }

  @Test
  public void start_fails_with_IAE_if_property_Data_Path_is_empty() {
    settings.setProperty(PATH_DATA.getKey(), "");

    assertThatThrownBy(() -> underTest.start())
      .isInstanceOf(IllegalArgumentException.class)
      .hasMessage("Missing property " + PATH_DATA.getKey());
  }

  @Test
  public void start_fails_with_IAE_if_JDBC_URL_settings_is_not_set() throws IOException {
    settings.setProperty(PATH_DATA.getKey(), temporaryFolder.newFolder().getAbsolutePath());

    assertThatThrownBy(() -> underTest.start())
      .isInstanceOf(IllegalArgumentException.class)
      .hasMessage("Missing property " + JDBC_URL.getKey());
  }

  @Test
  public void start_fails_with_IAE_if_embedded_port_settings_is_not_set() throws IOException {
    settings
      .setProperty(PATH_DATA.getKey(), temporaryFolder.newFolder().getAbsolutePath())
      .setProperty(JDBC_URL.getKey(), "jdbc url");

    assertThatThrownBy(() -> underTest.start())
      .isInstanceOf(IllegalArgumentException.class)
      .hasMessage("Missing property " + JDBC_EMBEDDED_PORT.getKey());
  }

  @Test
  public void start_ignores_URL_to_create_database_and_uses_empty_username_and_password_when_then_are_not_set() throws IOException {
    int port = NetworkUtilsImpl.INSTANCE.getNextLoopbackAvailablePort();
    settings
      .setProperty(PATH_DATA.getKey(), temporaryFolder.newFolder().getAbsolutePath())
      .setProperty(JDBC_URL.getKey(), "jdbc url")
      .setProperty(JDBC_EMBEDDED_PORT.getKey(), "" + port);

    underTest.start();

    checkDbIsUp(port, "", "");
  }

  @Test
  public void start_creates_db_and_adds_tcp_listener() throws IOException {
    int port = NetworkUtilsImpl.INSTANCE.getNextLoopbackAvailablePort();
    settings
      .setProperty(PATH_DATA.getKey(), temporaryFolder.newFolder().getAbsolutePath())
      .setProperty(JDBC_URL.getKey(), "jdbc url")
      .setProperty(JDBC_EMBEDDED_PORT.getKey(), "" + port)
      .setProperty(JDBC_USERNAME.getKey(), "foo")
      .setProperty(JDBC_PASSWORD.getKey(), "bar");

    underTest.start();

    checkDbIsUp(port, "foo", "bar");

    // H2 listens on loopback address only
    verify(system2).setProperty("h2.bindAddress", LOOPBACK_ADDRESS);
  }

  @Test
  public void start_supports_in_memory_H2_JDBC_URL() throws IOException {
    int port = NetworkUtilsImpl.INSTANCE.getNextLoopbackAvailablePort();
    settings
      .setProperty(PATH_DATA.getKey(), temporaryFolder.newFolder().getAbsolutePath())
      .setProperty(JDBC_URL.getKey(), "jdbc:h2:mem:sonar")
      .setProperty(JDBC_EMBEDDED_PORT.getKey(), "" + port)
      .setProperty(JDBC_USERNAME.getKey(), "foo")
      .setProperty(JDBC_PASSWORD.getKey(), "bar");

    underTest.start();

    checkDbIsUp(port, "foo", "bar");
  }

  private void checkDbIsUp(int port, String user, String password) {
    try {
      String driverUrl = String.format("jdbc:h2:tcp://%s:%d/sonar;USER=%s;PASSWORD=%s;NON_KEYWORDS=VALUE", LOOPBACK_ADDRESS, port, user, password);
      DriverManager.registerDriver(new Driver());
      DriverManager.getConnection(driverUrl).close();
    } catch (Exception ex) {
      fail("Unable to connect after start");
    }
  }

}
